What is the minimum number of web applications required to host the site collection?

You plan to deploy a SharePoint Server 2013 server farm.
You need to create four site collections. The site collections must meet the requirements described in
the following table.

What is the minimum number of web applications required to host the site collection?

A.
1

B.
2C.3

D.
4

Explanation:
* You can manage how Microsoft SharePoint Designer is used at two levels:
/ Web application level which is applicable to all site collections in the web application and to the site
collection administrators.
/ Site collection level (managed by site collection administrators) which is applicable to all sites in the
collection along with the Designers and Owners group.
* Enable SharePoint Designer
Enable or disable SharePoint Designer 2010 use for an entire application or site collection. If you want to
ensure that all designers and owners within a specific site collection can use SharePoint Designer 2010,
enable this setting at the site collection level.